Feet and Inches Calculator is an easy-to-use online calculator that is used to evaluate the addition, subtraction, multiplication, and division of two values in feet and inches, and allows you to efficiently perform mathematical operations on measurements expressed in feet and inches.

Roofing Calculator is a free roofing square footage calculator to determine your roof size and get the right amount of roofing shingles for your job.

Pythagorean Theorem Calculator could finds the unknown side length of a right triangle to quickly solve right triangle problems.

Percent To Fraction Calculator could help you to convert the given percentages into fractions.